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Better day transition.. a cross-over fade

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This commit is contained in:
Mark Watkins 2011-12-20 22:32:56 +10:00
parent 5eff786db9
commit 64c4143848
1 changed files with 24 additions and 16 deletions
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40
Graphs/gGraphView.cpp
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@ -2497,33 +2497,41 @@ void gGraphView::paintGL()
// bindTexture(previous_day_snapshot);
} else if (m_fadingIn) {
int offset,offset2;
if (m_fadedir) { // forwards
offset2=-width();
offset=0;
float aphase;
aphase=1.0-phase;
/*if (m_fadedir) { // forwards
//offset2=-width();
//offset=0;
aphase=phase;
phase=1.0-phase;
} else { // backwards
phase=phase;
offset=-width();
offset2=0;//-width();
}
aphase=phase;
phase=phase
//offset=-width();
//offset2=0;//-width();
}*/
offset=0; offset2=0;
glEnable(GL_BLEND);
glColor4f(255,255,255,255);
glColor4f(1.0,1.0,1.0,aphase);
bindTexture(previous_day_snapshot);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 1.0f); glVertex2f(width()*phase+offset2,0);
glTexCoord2f(1.0f, 1.0f); glVertex2f(width()+width()*phase+offset2,0);
glTexCoord2f(1.0f, 0.0f); glVertex2f(width()+width()*phase+offset2,height());
glTexCoord2f(0.0f, 0.0f); glVertex2f(width()*phase+offset2,height());
glTexCoord2f(0.0f, 1.0f); glVertex2f(0,0);
glTexCoord2f(1.0f, 1.0f); glVertex2f(width(),0);
glTexCoord2f(1.0f, 0.0f); glVertex2f(width(),height());
glTexCoord2f(0.0f, 0.0f); glVertex2f(0,height());
glEnd();
glColor4f(1.0,1.0,1.0,phase);
bindTexture(current_day_snapshot);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 1.0f); glVertex2f(width()*phase+offset,0);
glTexCoord2f(1.0f, 1.0f); glVertex2f(width()+width()*phase+offset,0);
glTexCoord2f(1.0f, 0.0f); glVertex2f(width()+width()*phase+offset,height());
glTexCoord2f(0.0f, 0.0f); glVertex2f(width()*phase+offset,height());
glTexCoord2f(0.0f, 1.0f); glVertex2f(0,0);
glTexCoord2f(1.0f, 1.0f); glVertex2f(width(),0);
glTexCoord2f(1.0f, 0.0f); glVertex2f(width(),height());
glTexCoord2f(0.0f, 0.0f); glVertex2f(0,height());
glEnd();
glDisable(GL_BLEND);